module ActiveRecord::Tasks::DatabaseTasks

def load_seed
  if seed_loader
    seed_loader.load_seed
  else
    raise "You tried to load seed data, but no seed loader is specified. Please specify seed " +
          "loader with ActiveRecord::Tasks::DatabaseTasks.seed_loader = your_seed_loader\n" +
          "Seed loader should respond to load_seed method"
  end
end